The act of publishing a book or other work on your own without the assistance of a reputable third-party publisher is known as self publishing. A tangible <a href=" removed link " target="_blank" rel="noopener">self publishing book company is considered to have been privately printed. The author is in charge of every step of the process, including cover and interior design, formats, pricing, distribution, marketing, and public relations.
self-publishing is when an author publishes their work or book without traditional book publisher. As the author has to work hard hard and give proper time in each step of process such as cover designing, editing, pricing, marketing and many more, that may be cost effective. An author has full right on how much he/she would like to spend on marketing. However, you can read detailed article on self-publishing vs traditional publishing comparison (www.gnomebookwriting.com/blog/self-publishing-vs-traditional-publishing/) of both with advantages and disadvantages.